Using Shielding Gas Efficiently

Gas handling equipment is one area shops sometimes overlook to keep costs down to stay competitive. Proper gas-saver flowmeter regulators can ensure saving on the amount of shielding gas that is used with each pull of the trigger of the welding gun.
Gases: Articles

Clearing the Air in Gas Delivery

With a clearer understanding of the gas delivery systems that are currently available, shops should be better equipped to select the correct gas handling system for your application.
MIG and TIG welding, plasma cutting, laser cutting or welding all require compressed gases. How these gases are stored, handled and used will determine the extent that the overall cost of these gas products impacts your bottom line. The correct gas delivery system will provide the most economical and efficient results to complement any of these applications – and the normal starting point for all of them is a cylinder of gas and a regulator. 

What You Should Know About Shielding Gas

Sometimes overlooked as a factor in weld quality and productivity, shielding gas can play a significant role in improving welding performance.
Knowing how to select the appropriate shielding gas for the application can go far in helping obtain the desired welding performance and minimizing the downtime for rework caused by poor weld quality. Here are some of the basics of what you should know about shielding gases.

Common Shielding Gases Used for Arc Welding

Each gas has different properties that affect how it responds under the heat of a welding arc, include its reactivity, ionization potential and thermal conductivity. Reactivity effects whether or not a certain gas or gas mix can be used with certain materials. These properties also affect various shielding gas operating characteristics and effect bead shape and penetration profiles.(Click on photo to enlarge it)
The variety of shielding gases used in arc welding can be confusing as to when to use which gas for which application. Here are some basic guidelines to follow.

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Gases: Industry News

nexAir to Move Headquarters

nexair chief executive officer Kevin McEniry stands in front of Crosstown Concourse, the historic former Sears & Roebuck building in downtown Memphis. nexair will occupy 33,000 sq ft of the 1.1 million square foot mixed-use building (Photo courtesy of Trey Clark Photography)
The gas and welding supply distributor is moving their corporate headquarters to the historic 1.1 million sq ft Crosstown Concourse in Memphis, TN.

nexAir Acquires Air Liquide Facilities in Tennessee

This deal increases nexAir's liquid carbon dioxide and dry ice business in the mid-South.

nexAir Merges with Praxair Distribution Southeast

The deal strengthens their footprint in industrial and specialty gases in strategic Florida and Georgia markets.


Gases: Products

Affordable Regulators for Acetylene, Oxygen, LP and Inert Gas Operations

Victor G Series regulators are available for acetylene, oxygen, LP and inert gas. Common benefits include a color combination on the gauge face that provides clarity for reading the needle position, as well as scale and red tick marks to indicated actual service pressure. A high-strength alloy bonnet provides three times the yield strength of the previous brass bonnet. The ergonomic shape of the knob makes it easier to set pressure, especially with a gloved hand, while color-coding aids with gas identification.
Victor G150, GT350 and GRF400 regulators from ESAB use a color combination on the gauge face that provides clarity for reading the needle position, with scale and red tick marks to indicate actual service pressure.

Innovative Pipe Purging System for Welders

Equipped with unique Quick-Connect fittings, components snap on and off in seconds. Standard harness lengths can be customized by individual needs to place the bladders outside the heat-affected zone. These flexible, high heat harnesses can be navigated through elbows and T-joints, and have a central point marked with a luminescent indicator for easy alignment with the center of the root gap.
Components of the versatile and adaptable I-Purge and I-Purge X Modular Inflatable Bladder Systems combine to offer welders more customized solutions for pipe purging than ever before.

Proportional Gas Mixers

An Argon-CO2 Gas Mixer from Miller Electric. Proportional gas mixers reduce setup time, reduce costs associated with pre-mixed gases and reduce the number of cylinders stored in the facility. No electricity is required, and a simple interface allows for easy operation and training. 
These proportional gas mixers precisely combine Argon Helium, Argon Hydrogen and Argon Oxygen and eliminate the stratification of these gases after sitting for long periods of time.